UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AW+PmgtG3g64L3gLlgXT97AIl4kNadK4a3KXeLgTdDs=' 
WHERE 
  key_id = '20a0732df6a9c5a614d7c434d24eccba76fc3699da338680418d1711cd88d348' 
  AND (
    token = 'AW+PmgtG3g64L3gLlgXT97AIl4kNadK4a3KXeLgTdDs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )